BR9814758A - Process for adjusting the inversion and level for optical signals - Google Patents

Process for adjusting the inversion and level for optical signals

Info

Publication number
BR9814758A
BR9814758A BR9814758-7A BR9814758A BR9814758A BR 9814758 A BR9814758 A BR 9814758A BR 9814758 A BR9814758 A BR 9814758A BR 9814758 A BR9814758 A BR 9814758A
Authority
BR
Brazil
Prior art keywords
inversion
adjusting
level
optical signals
optical
Prior art date
Application number
BR9814758-7A
Other languages
Portuguese (pt)
Inventor
Erich Gottwald
Original Assignee
Siemens Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1997152982 external-priority patent/DE19752982A1/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of BR9814758A publication Critical patent/BR9814758A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/297—Bidirectional amplification
    • H04B10/2971—A single amplifier for both directions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
    • H01S3/302—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in an optical fibre
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H04B10/2916—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing using Raman or Brillouin amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

Patente de Invenção: <B>'PROCESSO PARA O AJUSTE DA INVERSãO E DO NìVEL PARA SINAIS óTICOS"<D>. Em um segmento de transmissão (SLWR) é suprida energia de bombeio com um comprimento de onda (<sym>~ P~) por um laser de bombeio e através de um acoplador (K1), situado abaixo do comprimento de onda (<sym~ S~) do sinal ótico (OS). Com o aumento da energia de bombeio é enfraquecido o sinal ótico de recepção (OS~ E~), sendo mais atenuados os sinais com frq³ências mais elevadas.Invention Patent: <B> 'PROCESS FOR ADJUSTING THE INVERSION AND LEVEL FOR OPTICAL SIGNALS "<D>. In a transmission segment (SLWR) pumping energy with a wavelength (<sym> ~ P ~) is supplied ) by a pumping laser and through a coupler (K1), located below the wavelength (<sym ~ S ~) of the optical signal (OS) .With increasing pumping energy, the optical reception signal is weakened ( OS ~ E ~), with signals with higher frequencies being more attenuated.

BR9814758-7A 1997-11-28 1998-11-06 Process for adjusting the inversion and level for optical signals BR9814758A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1997152982 DE19752982A1 (en) 1997-11-28 1997-11-28 Signal level adjustment for light wave conductor
DE19752983 1997-11-28
PCT/DE1998/003254 WO1999029057A1 (en) 1997-11-28 1998-11-06 Method for adjusting the level of optical signals

Publications (1)

Publication Number Publication Date
BR9814758A true BR9814758A (en) 2000-10-03

Family

ID=26042017

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9814758-7A BR9814758A (en) 1997-11-28 1998-11-06 Process for adjusting the inversion and level for optical signals

Country Status (7)

Country Link
US (1) US7024117B1 (en)
EP (1) EP1034629B1 (en)
CN (1) CN100365959C (en)
BR (1) BR9814758A (en)
DE (1) DE59807139D1 (en)
RU (1) RU2176433C1 (en)
WO (1) WO1999029057A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000005622A1 (en) * 1998-07-23 2000-02-03 The Furukawa Electric Co., Ltd. Raman amplifier, optical repeater, and raman amplification method
US6568593B2 (en) 2000-07-14 2003-05-27 Trumpf Gmbh + Co. System and method for identification of tools and parts of tools for a fabricating machine
DE10056327A1 (en) * 2000-11-14 2002-05-29 Siemens Ag Process for amplifying optical signals
DE10057659B4 (en) * 2000-11-21 2004-01-15 Siemens Ag Optical transmission system with cascaded Raman amplifiers each having several pump sources
DE10303313A1 (en) 2003-01-28 2004-07-29 Marconi Communications Gmbh Message transmission method via optical fiber, by distributing change in optical power of filling channels to reduce displacement of entire spectrum
US7619812B2 (en) 2004-08-11 2009-11-17 Siemens Aktiengesellschaft Method and arrangement for the rapid adjustment of the tilt of optical WDM signals
US7408702B2 (en) * 2004-10-25 2008-08-05 Ciena Corporation Bidirectional optical amplifier
JP2009065090A (en) * 2007-09-10 2009-03-26 Yokogawa Electric Corp Optical amplifying device and optical communication device
EP2081308B1 (en) * 2008-01-15 2013-08-28 Nokia Siemens Networks GmbH & Co. KG Method and device for providing and/or controlling an optical signal
WO2020107030A1 (en) * 2018-11-23 2020-05-28 Nuburu, Inc Multi-wavelength visible laser source

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE734105C (en) 1942-01-18 1943-04-08 Johann Peter Schloesser Flexible coupling for shafts
US4616898A (en) * 1980-03-31 1986-10-14 Polaroid Corporation Optical communication systems using raman repeaters and components therefor
JPS57176312A (en) 1981-04-23 1982-10-29 Niles Parts Co Ltd Exhaust gas complete reflux equipment for engine
JPS5885588A (en) * 1981-11-16 1983-05-21 Nec Corp Wavelength multiplex light amplifying device
JPS5965828A (en) * 1982-10-08 1984-04-14 Nippon Telegr & Teleph Corp <Ntt> Amplification system for optical signal
US5173957A (en) * 1991-09-12 1992-12-22 At&T Bell Laboratories Pump redundancy for optical amplifiers
JP3379052B2 (en) * 1994-09-26 2003-02-17 富士通株式会社 WDM optical amplifier, WDM transmission system, and WDM transmission method
DE69633476T2 (en) * 1995-03-20 2005-12-01 Fujitsu Ltd., Kawasaki Fiber optic amplifier and dispersion compensating fiber module for fiber optic amplifiers
JP4036489B2 (en) * 1995-08-23 2008-01-23 富士通株式会社 Method and apparatus for controlling an optical amplifier for optically amplifying wavelength multiplexed signals
JP3739453B2 (en) * 1995-11-29 2006-01-25 富士通株式会社 Optical amplifier and optical communication system provided with the optical amplifier
JP2910667B2 (en) * 1996-04-09 1999-06-23 日本電気株式会社 Linear repeater optical amplification transmission equipment
US6081366A (en) * 1997-08-28 2000-06-27 Lucent Technologies Inc. Optical fiber communication system with a distributed Raman amplifier and a remotely pumped er-doped fiber amplifier
US5991070A (en) * 1997-11-14 1999-11-23 Sdl, Inc. Optical amplifier with oscillating pump energy

Also Published As

Publication number Publication date
EP1034629A1 (en) 2000-09-13
CN1280724A (en) 2001-01-17
WO1999029057A1 (en) 1999-06-10
RU2176433C1 (en) 2001-11-27
DE59807139D1 (en) 2003-03-13
CN100365959C (en) 2008-01-30
US7024117B1 (en) 2006-04-04
RU2000116642A (en) 2004-02-27
EP1034629B1 (en) 2003-02-05

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5O, 6O, 7O, 8O E 9O ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1910 DE 14/08/2007.

B15K Others concerning applications: alteration of classification

Ipc: H04B 10/297 (2013.01), H01S 3/30 (2006.0